Scottish landscape architect and pioneer in regional and ecological planning Ian L. McHarg, from the School of Fine Arts at the University of Pennsylvania, lectured on "Design with Nature." McHarg called his book, Design with Nature (1969) “a personal testament to the power of sun, moon, and stars, the changing seasons, seedtime and harvest, clouds, rain and rivers, the oceans and the forests, the creatures and the herbs. They are with us now, co-tenants of the phenomenal universe.”